Carpet cutting and raveling machine.



W. P. KIRKPATRICK. CARPET CUTTING AND RAVELING MACHINE. APPLICATIONFILED 00T.14, 1907.

904,964. Patented Nov. 24, 1908.

2 SHEETS-SHEET 1.

W. P. KIRKPATRICK. OARPET CUTTING AND RAVELING MACHINE. I

APPLICATION FILED 00114. 1907.

WILLIAM P. KIRKPATRICK, OF ARROWSMITH, ILLINOIS.

CARPET CUTTING AND RAVELING MACHINE.

Specification of Letters Patent.

Application filed October 14, 1907.

Patented Nov. 24, 1908.

Serial No. 397,485.

To all whom it may concern:

Be it known that I, \VILLIAM P. KIRK- PATRICK, a citizen of the UnitedStates, residing at Arrowsmith, in the county of Mc- Lean and State ofIllinois, have invented certain new and useful Improvements in CarpetCutting and Raveling Machines; and I do hereby declare the following tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to a combined carpet cutting and raveling machine.

It has for its object to lessen the labor and time required for reducingold carpets into strips for the purpose of weaving rag carpets and rugs.

A further object is to give the strips a crimped appearance which isvery beneficial when woven because it hides the warp and makes thecarpet or rug more valuable.

The invention consists in the features of construction and combinationsof parts hereinafter described and specified in the claims.

In the accompanying drawings illustrating the preferred embodiment of myinven tion: Figure 1 is a front elevation of the machine showing a pieceof carpet partly cut therein. Fig. 2 is an enlarged broken view of theoperating portion of the machine. Fig. 3 is an enlarged detailed view ofthree sets or pairs of upper and lower knives operatively arranged withthe raveling wheels and spacing disks between them, and Fig. 4 is acentral vertical section thereof taken in line with the longitudinalaxes of said cutters and raveling disks.

Referring more particularly to the drawings, l designates the frameworkupon which the operating parts of the machine are mounted. An inclinedwork table 2 is supported upon said framework and serves as a rest forthe carpet as it is fed between the cutting and raveling disks which aremounted on upper and lower horizontal shafts 3 and a supported insuitable bearings at the lower end of said table.

l/Vhile I have illustrated a machine with only a few sets of cutters sothat it will only cut and ravel a few strips each time the carpet ispassed through, the number of said cutters and raveling disks may beincreased as may be desirable even to extending them entirely across thetable. When the shafts only extend partially across said table, as

shown, their inner ends are carried by brackets 5 and 6 securedrespectively to upper and lower spaced apart cross pieces 7 and 8. Aspace is left between the adjacent ends of said brackets to permit theuncut part of the carpet to pass between the ends of said shafts. On theouter ends of said shaft are mounted meshing cogs 9 and 10 while theextremity of the lower shaft 4 carries fast and loose pulleys 11 and 12.The sets of upper and lower cutter disks or knives 13 which are mountedon said shafts are arranged to alternately face in opposite directions,that is to say, the first and second of the upper cutters face eachother and the second and third are back to back while the first two ofthe lower cutters are back to back and the second and third face toface, as shown in Figs. 3 and 4t. Said cutters are slightly cupped, asillustrated in Fig. 4, which causes a certain springing of the edge ofone against the next and renders them self sharpening. l/Vear on saidknives may be taken up by the nuts 14 and 15 mounted on each shaft atthe ends of the series of cutters.

Between each two adjacent cutters on each shaft are arranged tworaveling disks 16 provided with projecting teeth l7, l7, and a spacingdisk 18 between said raveling disks. Said teeth are straight on theiredges next to the cutters, but are beveled as at 19 on their innerfacing edges. The sides of said teeth are also beveled to an edgeforming sharp teeth adapted to ravel the edges of the strips as they arecut by the cutting disks. One spacing disk 18 of each pair is of greaterdiameter than the opposite one. The larger spacing disk of each pair isarran ed alternately on one shaft in one pair and on the other shaft inthe next pair. The smaller of said spacing disks is about on a levelwith the base of the teeth on its adjacent raveling disks while thelarge spacing disk projects partially out along said teeth. The resultis that the strip as it comes from the cutters adheres to some extent tothe larger disks and, as said disks are arranged alternately above andbelow, the strips are separated and are thus prevented from becomingtangled. The periphcry of each spacing disk is grooved as at 20 and insaid grooves rest the ends of wire guards 21 secured to the upper andlower cross pieces 7 and 8. Said guards prevent the operators fingersfrom getting in between the cutting or raveling disks and also serve toremove the strips of carpet from the larger spacing disks if they shouldadhere too firmly thereto. V-Jashers or filling disks 22 are placedbetween the raveling disks and cupped faces of the knives or cuttingdisks to produce spaces for the opposing knives to enter. Theopposite'raveling disks mesh with each other or rather their teethalternate as they pass one another whereby the edges of the cut stripsare having a series of cutting disks arranged in facing pairs andraveling disks arranged between said cutting disks whereby a piece ofmaterial may be cut into strips and the edges of said strips raveledsimultaneously.

3. A machine of the character described having two parallel shafts,cutting and raveling disks mounted on each of said shafts,

the cutting disks on one shaft overlapping and contacting with those onthe other shaft and the raveling disks on one shaft meshing with thoseon the other shaft.

i. A machine of the character described having a pair of cutting disks,raveling disks arranged between said cutting disks adj acent thereto, aspacing disk placed between said raveling disks and provided with agroove in its periphery, and a wire guard having its free end resting insaid groove for the purpose specified.

5. A machine of the character described having two parallel shafts,cutting and raveling disks mounted on each of said shafts, the cuttingdisks on one shaft overlapping and contacting with those on the othershaft and the raveling disks on one shaft meshing with those on theother shaft, said cutting disks on each shaft being arranged in facingpairs and two raveling disks placed between each of said pairs ofcutting disks.

6. A machine of the character described, having upper and lower pairs ofrotary cutting disks overlapping and contacting in vertical pairs, theupper pair facing each other while the lower pair are arranged back toback, and meshing raveling disks arranged between said upper and lowerpairs of cutting disks.

7. A machine of the character described having upper and lower pairs ofrotary cutting disks overlapping and contacting in vertical pairs, saidcutting disks being slightly cupped and the upper pair facing each otherwhile the lower pair are arranged back to back, and meshing ravelingdisks arranged between said upper and lower pairs of cutting disks.

8. A machine of the character described having two parallel shafts,cutting and raveling disks mounted on each of said shafts, the cuttingdisks on one shaft overlapping and contacting with those on the othershaft and the raveling disks on one shaft meshing with those on theother shaft, said cutting disks on each shaft being arranged in facingpairs, two raveling disks placed between each of said pairs of cuttingdisks, and spacing disks mounted on each shaft between each acent pairof raveling disks which are placed between each pair of cutting disks.

9. a machine of the character described, having upper and lower pairs ofrotary cutting disks overlapping and contacting in vertical pairs, pairsof meshing raveling disks arranged between said upper and lower pairs ofcutting disks, and spacing disks 1 placed between said pairs of ravelingdisks,

said spacing disks having grooves in their peripheries, and wire guardsarranged with their free ends resting in said grooves.

10. A machine of the character described having upper and lower pairs ofrotary cutting disks overlapping and contacting in vertical pairs, pairsof meshing raveling disks arranged between said upper and lower pairs ofcutting disks, and spacing disks placed between said pairs of ravelingdisks,

one of said spacing disks being larger than the other for the purposespecified.

11. A machine of the character described having upper and lower pairs ofrotary cutting disks overlapping and contacting in Vertical pairs, pairsof raveling disks between said cutting disks and having meshing teeth,and spacing disks placed between said pairs of raveling disks, one ofsaid spacing disks being larger than the other and projecting part wayout along said teeth for the purpose specified.

12. A machine of the character described having upper and lower parallelshafts, series of cutting disks mounted on said shafts so that those onone shaft overlap and contact with the ones on the other shaft, seriesof toothed raveling disks mounted on said shafts and meshing with oneanother, two of said raveling disks being arranged between each pair ofadjacent cutting disks, and spacing disks arranged between said ravelingdisks, one of each vertical pair of spacing disks being larger than theother and the larger one in each of said pairs being arrangedalternately on the upper and lower shafts for the purpose specified.

13. A machine of the character described having upper and lower parallelshafts, series of cutting disks mounted on said shafts so that those onone shaft overlap and contact with the ones on the other shaft, seriesof toothed raveling disks mounted on said shafts and meshing with oneanother, two of said raveling disks being arranged bet-ween each pair ofadjacent cutting disks, and spacing disks arranged between said ravelingdisks, one of each vertical pair of spacing disks being larger than theother and the larger one in each of said pairs being arrangedalternately on the upper and lower shafts for the purpose specified, theperipheries of said spacing disks being grooved, and wire guards havingtheir free ends resting in said grooves.

14. A machine of the character described having means to cut materialinto strips, and raveling disks arranged so that a pair of them operateon each strip cut, said raveling disks being provided with teeth havingthe adjacent edges in each pair beveled off on diverging lines.

15. A machine of the character described having upper and lower shafts,series of cutting disks mounted on said shafts so that those on oneshaft overlap and contact with the ones on the other shaft, and ravelingdisks on said shafts, two between each pair of cutting disks andprovided with teeth having their adjacent edges beveled off on diverginglines.

In testimony whereof, I aflix my signature, in presence of twowitnesses.

WVILLIAM P. KIRKPATRICK.

WVitnesses:

RALPH L. Sol-IN, L. M. J OHNSON.

